如何在多模块项目中配置Maven shade插件？

你MainModule不应该生成一个jar文件.它只能生成... pom文件.它包含所有子模块共享的配置.这就是针对每个模块调用shade插件的原因.

而是创建第三个模块.我们称之为FinalModule.这个模块是孩子的MainModule.将整个<build>节点从MainModulepom.xml 移动到FinalModulepom.xml.

文件结构:

   MainModule
      -FinalModule
        -src
        -pom.xml
      -Module1
        -src
        -pom.xml
      -Module2
        -src
        -pom.xml
      -pom.xml

该FinalModule pom.xml如下所示:

FinalModule(pom.xml)

<parent>
    <groupId>com.plugintest</groupId>
    <artifactId>MainModule</artifactId>
    <version>1.0-SNAPSHOT</version>
</parent>
<artifactId>FinalModule</artifactId>

<dependencies>
    <dependency>
        <groupId>com.plugintest</groupId>
        <artifactId>Module1</artifactId>
        <version>1.0-SNAPSHOT</version>
    </dependency>
    <dependency>
        <groupId>com.plugintest</groupId>
        <artifactId>Module2</artifactId>
        <version>1.0-SNAPSHOT</version>
    </dependency>
</dependencies>

<build>
    <plugins>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-shade-plugin</artifactId>
            <version>2.2</version>
            <executions>
                <execution>
                    <phase>package</phase>
                    <goals>
                        <goal>shade</goal>
                    </goals>
                </execution>
            </executions>
        </plugin>
    </plugins>
</build>

最后,你应该得到这样的东西:

[INFO] 
[INFO] --- maven-jar-plugin:2.3.2:jar (default-jar) @ FinalModule ---
[INFO] Building jar: D:\workspaces\java\Parent\FinalModule\target\FinalModule-1.0-SNAPSHOT.jar
[INFO] 
[INFO] --- maven-shade-plugin:2.2:shade (default) @ FinalModule ---
[INFO] Including my:Module1:jar:1.0-SNAPSHOT in the shaded jar.
[INFO] Including my:Module2:jar:1.0-SNAPSHOT in the shaded jar.
[INFO] Replacing original artifact with shaded artifact.
[INFO] Replacing D:\workspaces\java\Parent\FinalModule\target\FinalModule-1.0-SNAPSHOT.jar with D:\workspaces\java\Parent\FinalModule\target\FinalModule-1.0-SNAPSHOT-shaded.jar
[INFO] Dependency-reduced POM written at: D:\workspaces\java\Parent\FinalModule\dependency-reduced-pom.xml
[INFO] ------------------------------------------------------------------------
[INFO] Reactor Summary:
[INFO] 
[INFO] Parent ............................................ SUCCESS [0.016s]
[INFO] Module1 ........................................... SUCCESS [1.654s]
[INFO] Module2 ........................................... SUCCESS [0.343s]
[INFO] FinalModule ....................................... SUCCESS [0.953s]
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------